164214domain: NAppears in sequencesNumber of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 1, 0), (1, -1, -1), (1, 1, 1)}.at n=9A150516Number of ways to arrange 3 nonattacking queens on the lower triangle of an n X n board.at n=15A194493